6 results
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
Differential Diagnosis Algorithm ... • Vitiligo Localized ... leaf" macules) Localized ... versicolor (more commonly ... #causes
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
Differential Diagnosis Algorithm ... Diffuse Congenital ... • Piebaldism Diffuse ... disorders #skin #dermatology ... #causes
Skin Hyperpigmentation - Differential Diagnosis Algorithm
Diffuse:
 • Tanning
 • Adverse cutaneous drug eruption
 • Addison's disease
Differential Diagnosis Algorithm ... Diffuse: • Tanning ... versicolor (more commonly ... disorders #skin #dermatology ... #causes
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Lyme in early localized ... dermal macular hyperpigmentation ... or trunk most commonly ... • Most commonly ... Erythemas #comparison #table
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
suggest vascular or hematologic ... post-inflammatory hyperpigmentation ... Seen in systemic causes ... o Localized: Often ... Drug Reactions: Diffuse
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Common Dermatological ... vulgaris - Face, upper ... background of hyperpigmentation ... dermatitis - Anywhere - Localized ... cheeks, temples, upper